Comment 3 for bug 1573766

Reviewed: https://review.openstack.org/318603
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=b609a3b32ee8e68cef7e66fabff07ca8ad6d4649
Submitter: Jenkins
Branch: master

commit b609a3b32ee8e68cef7e66fabff07ca8ad6d4649
Author: Juan Antonio Osorio Robles <email address hidden>
Date: Thu May 19 15:10:22 2016 +0300

    Add http_proxy_to_wsgi to api-paste

    This sets up the HTTPProxyToWSGI middleware in front of Nova-API. The
    purpose of thise middleware is to set up the request URL correctly in
    case there is a proxy (For instance, a loadbalancer such as HAProxy)
    in front of Nova.

    So, for instance, when TLS connections are being terminated in the
    proxy, and one tries to get the versions from the / resource of
    Nova, one will notice that the protocol is incorrect; It will show
    'http' instead of 'https'. So this middleware handles such cases.
    Thus helping Keystone discovery work correctly.

    The HTTPProxyToWSGI is off by default and needs to be enabled via a
    configuration value.

    Change-Id: Ia78f73e96585ab33a379a0b0be6d9682f7fbd810
    Closes-Bug: #1573766